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Evolution Unit Stuff



Evolution - the change in allele frequency in a population over time

Evolution is a unifying theme in biology.  It offers explanations of natural events, connects multiple disciplines (like genetics and ecology), and is an excellent way to see how scientific understanding is developed through hypotheses, evidence and analysis. 

This page will be added to over the next few weeks.  Caution and critical thinking should be used when doing any research for evolution, particularly online, as some sites will offer non-scientific information or may have inaccuracies. The sites posted on the class will be screened for scientific validity or noted otherwise.

Click here for class Video from 10/20/17 and FOSSIL INFO (or scroll to the bottom)

Click here for HHMI Videos 

Click here for Extra Credit Video for 5/1/2015

Click here for other natural selection links.

Click here for Sneaky Cricket.






To view an online copy of the Introduction to Charles Darwin's On the Origin of Species, click here:

CAUTION:  The purpose for the above site is only to provide a digital source for On the Origin of Species.  While this site is appropriate for the primary source (Darwin's writing), not all links on this site have been evaluated for bias.  Feel free to look and ask questions if you have them.  

 Will Bunnies take over the world?  Will the allele frequencies in their populations change?  What conditions will or won't make these things happen?  Find out here:

What in the world can WHALES teach us about evolution?

Note:  If you do not have flash player, you can download it free by clicking.  You will need it to run the app.  You will also need to unblock pop-ups from this site to use it. 

Additional Whale Evolution Sites

Whale Evolution (includes video)

More information on whale evolution

Whale family tree:

Valley of the Whales – Whales bones in the desert?  What’s up with that?

Whale Evolution from Enchanted Learning

Visual timeline with images and other photos/information;

This site has an artist’s interpretation of what a whale ancestor might look like while attacking prey!  Check it out:

Addtional sites of interest: Darwin

Summary of Darwin's influences and influence; includes historical and key elements in simple form

Darwin’s “Diary” by PBS; for students still interested in Darwin’s life, religion and work.

Darwin’s voyage; this is the source of the activity from class on 5/7/12

Addtional sites of interest: Fossils


More fossils:

More Fossil Info:

Still more fossils; This site has a lot of categories and age levels walks through concepts step by step

Horse family fossils and family history:

Short fossil videos, including La Brea Tar Pits (shown in class):

Browning, Montana museum, lots of info, including dinosaur wishbones!:

Maiasaura - the "good mother" lizard:

Dakota - the mummified dinosaur with skin and ligaments


(videos embedded)




Leonardo -  the mummified dinosaur with an intact digestive system!



 Official site for Leonardo, including video

Ida - the missing link in primate evolution?



Dinosaur mummy timeline:

Little Foot- a cousin or an ancestor?


Other Reliable Links

Searchable PBS site:

What evolution is and is not:

(Other resources)


Primate Features:

Flightless cormorants (a vestigial feature) - VIDEO 
Go through each stage to see images and a description of what is developing during that stage.

Poultry (chick) embryo development, instages  Go through and compare what happens to chicks with what happens to humans.  At what stage are they "turning on the same switches"?  At what stage do they start turning on different genes?

Natural Selection and Sites of Interest Gazelles learning to eat like giraffes...


Bunny Lab: Online interactive model of natural selection in a rabbit population.

Will Bunnies take over the world?  Will the allele frequencies in their populations change?  What conditions will or won't make these things happen?  Do all mutations make things more fit?  How are genetics and pedigrees related to evolution? Find out here:



"What Causes Antibiotic Resistance"  Kevin Wu/TED-Ed  Antibiotic resistance video shown in class on 5/4/2015:​

Antibiotics in the meat industry -

Info and a petition to sign NRDC:

Antibiotics in Chicken Blog (article from class on 5/5/15)

Antibiotiic-Free Meat Movement



Sneaky Cricket (class reading from 5/1/15; worksheet passed out in class; also available at this link: Sneaky Cricket Questions):


Several videos are available on this link:


Stickleback Evolution (From class on 4/28/15 SUB DAY):   "Evolving Swtiches, Evolving Bodies"  Answer worksheet questions.  


Humans and Lactose Intolerance (From class on 5/1/15):    Watch and take notes, or watch and write a summary at the end.


Malaria and Sickle Cell (From class on 5/1/15; 5th hour can substitute in place of extra credit video below):


For Extra Credit HW (assigned 5/1/15, due 5/4/15):  (watch video; answer questions below)


EXTRA CREDIT 5/1/15  due 5/4/15 

HHMI Videos "Origin of Species: The Beak of the Finch"   Current research on Galapagos Islands show how beak size of finches can evolve.

Watch the video.  Then, answer these discussion questions:

  1. Briefly summarize the study location, topic and methods of this research. (1-2 sentences)
  2. What was the first major environmental change that occurred during the study?
  3. What happened to the number of individuals in the population during this time?
  4. Why exactly did so many birds die?
  5. What happened to average beak size as a result of this change?
  6. Did any individual bird change the size of its own beak?
  7. If no birds changed, how did the average change?
  8. True or False   Parents pass on DNA to their offspring.
  9. If mostly small-beaked birds mate and have offspring, what types of beaks will we see a lot of in the offspring?
  10. Is evolution a "plan" in one direction, or does evolution through natural selection act as a response to changes in the environment?  Cite evidence from the video.


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Check back later - more sites may be added!

If you find a site on your own and want to discuss its validity, bring it in and we can talk about it together!


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